Macro mk_hlist

macro_rules! mk_hlist {
    () => { ... };
    ($head:ty) => { ... };
    ($head:ty, $($tail:ty),+) => { ... };
}

Build a type-level HList from a comma-separated list of types.

Examples

type L = mk_hlist!(u8, bool, char);
// Equivalent to HCons<u8, HCons<bool, HCons<char, HNil>>>